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9e73c842ad
Similar to gcov, llvm-cov will now print out the block count at the end of each block. Multiple blocks can end on the same line. One computational difference is by using -a, llvm-cov will no longer simply add the block counts together to form a line count. Instead, it will take the maximum of the block counts on that line. This has a similar effect to what gcov does, but generates more correct counts in certain scenarios. Also updated tests. llvm-svn: 196856
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
//===- llvm-cov.cpp - LLVM coverage tool ----------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// llvm-cov is a command line tools to analyze and report coverage information.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/GCOV.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/MemoryObject.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/system_error.h"
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using namespace llvm;
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static cl::opt<bool>
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DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file"));
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static cl::opt<std::string>
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InputGCNO("gcno", cl::desc("<input gcno file>"), cl::init(""));
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static cl::opt<std::string>
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InputGCDA("gcda", cl::desc("<input gcda file>"), cl::init(""));
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static cl::opt<bool>
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AllBlocks("a", cl::init(false), cl::desc("display all block info"));
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//===----------------------------------------------------------------------===//
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int main(int argc, char **argv) {
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// Print a stack trace if we signal out.
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sys::PrintStackTraceOnErrorSignal();
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PrettyStackTraceProgram X(argc, argv);
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llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
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cl::ParseCommandLineOptions(argc, argv, "llvm coverage tool\n");
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GCOVFile GF;
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if (InputGCNO.empty())
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errs() << " " << argv[0] << ": No gcov input file!\n";
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OwningPtr<MemoryBuffer> GCNO_Buff;
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if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) {
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errs() << InputGCNO << ": " << ec.message() << "\n";
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return 1;
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}
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GCOVBuffer GCNO_GB(GCNO_Buff.get());
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if (!GF.readGCNO(GCNO_GB)) {
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errs() << "Invalid .gcno File!\n";
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return 1;
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}
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if (!InputGCDA.empty()) {
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OwningPtr<MemoryBuffer> GCDA_Buff;
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if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
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errs() << InputGCDA << ": " << ec.message() << "\n";
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return 1;
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}
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GCOVBuffer GCDA_GB(GCDA_Buff.get());
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if (!GF.readGCDA(GCDA_GB)) {
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errs() << "Invalid .gcda File!\n";
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return 1;
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}
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}
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if (DumpGCOV)
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GF.dump();
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FileInfo FI;
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GF.collectLineCounts(FI);
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FI.print(InputGCNO, InputGCDA, GCOVOptions(AllBlocks));
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return 0;
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}
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